a(n) = sigma_3(n)*Fibonacci(n), where sigma_3(n) = A001158(n), the sum of cubes of divisors of n.

A203838

a(n) = sigma_3(n)*Fibonacci(n), where sigma_3(n) = A001158(n), the sum of cubes of divisors of n.

Terms

    a(0) =1a(1) =9a(2) =56a(3) =219a(4) =630a(5) =2016a(6) =4472a(7) =12285a(8) =25738a(9) =62370a(10) =118548a(11) =294336a(12) =512134a(13) =1167192a(14) =2152080a(15) =4620147a(16) =7847658a(17) =17604792a(18) =28681660a(19) =62224470a(20) =105431872a(21) =212319468a(22) =348698376a(23) =759507840a(24) =1181718775a(25) =2401396326a(26) =4014783920a(27) =7980869832a(28) =12542045310

External references